Your doctor may use the word ‘regimen’ (e.g. the ICE regimen) when talking about your chemotherapy. This means the whole plan or schedule of your particular chemotherapy treatment. ICE and R-ICE chemotherapy can be given in slightly different ways. The following are descriptions of three commonly used schedules. You can ask your doctor or nurse to tell you whether it is one of these regimens that you will be having. If it is not, they can explain your regimen to you.
Schedule A
R-ICE chemotherapy is given in cycles that are repeated, usually three times, to make up a course of treatment.
Two days before you start your first cycle, you will be given a drip (infusion) of rituximab. On the first day of the cycle, you will be given another infusion of rituximab. Two days later (day 3) you will be given a short infusion of etoposide. On the next day (day 4), the etoposide will be repeated. You will also be given an infusion of carboplatin and start a 24-hour infusion of ifosfamide and mesna that have been mixed together. On the fifth day of the cycle, you will finish the ifosfamide and mesna infusion and be given etoposide for a third time. After this, you can go home.
Two days later (day 7 of the cycle) you will start daily injections of a drug called G-CSF (granulocyte-colony stimulating factor). This is a type of protein that stimulates the bone marrow to produce more white blood cells. The injections are given under the skin (subcutaneously). The G-CSF injections are given for eight days (days 7–14). This completes one cycle of your treatment. Each cycle lasts for 14 days.
On the next day you will start your next cycle of treatment, starting from day one again. The same drugs will be given to you again, except for the initial infusion of rituximab which is only given before the first cycle. Usually three cycles of treatment are given.
Schedule B
On the first day of ICE chemotherapy, you will be given all three chemotherapy drugs (ifosfamide, carboplatin and etoposide). The infusions of carboplatin and etoposide are both given over about an hour, and the ifosfamide lasts for about six hours.
On the next day (day 2), you will be given three more infusions of ifosfamide, each lasting six hours, and an infusion of etoposide, which will last for an hour. You will also be given a six-hour infusion of mesna. After this you will have a rest period, with no chemotherapy, for the next 19 days. This completes a cycle of your treatment. Each cycle lasts for 21 days (three weeks).
Following the rest period, three weeks after you started, you will be given the same drugs again, beginning your next cycle of your treatment. Usually three cycles of treatment are given over 2–3 months. This makes up a course of treatment.
If you are following this schedule and also being given rituximab (R-ICE), you will be given an infusion of rituximab on the first day of each cycle.
Schedule C
On the first day of ICE chemotherapy, you will be given an infusion of etoposide for an hour. On the next day (day 2) the etoposide will be repeated. You will also be given a 60-minute infusion of carboplatin and start a 24-hour infusion of ifosfamide and mesna.
On the following day (day 3) you will be given a third infusion of etoposide, again over about an hour. You will finish your 24-hour infusion of ifosfamide with mesna and be given a 12-hour infusion of mesna on its own. After this you will have a rest period with no chemotherapy for 25 days. This completes a cycle of your treatment. Each cycle lasts for 21 days (three weeks).
You will then have a rest period of one week. After the rest period (four weeks after you started) the same drugs will be given to you again, beginning the next cycle of your treatment. Usually 2–4 cycles of treatment are given over 2–4 months. This makes up a course of treatment.
If you are following this schedule but also being given rituximab (R-ICE), you will be given an infusion of rituximab on the first day of each cycle.